[INFO] cloning repository https://github.com/joshpoll/pretty-egg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joshpoll/pretty-egg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshpoll%2Fpretty-egg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshpoll%2Fpretty-egg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ea56d4e77c0e0e26ca897ac6070e0bcd277c3b1
[INFO] testing joshpoll/pretty-egg against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshpoll%2Fpretty-egg" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joshpoll/pretty-egg on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joshpoll/pretty-egg
[INFO] finished tweaking git repo https://github.com/joshpoll/pretty-egg
[INFO] tweaked toml for git repo https://github.com/joshpoll/pretty-egg written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/joshpoll/pretty-egg already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded reduce v0.1.4
[INFO] [stderr]   Downloaded symbolic_expressions v5.0.3
[INFO] [stderr]   Downloaded egg v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6599b796fbfb2da7f1962a9265eb7ff8417da34ad116b0164ac7e6a133247637
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6599b796fbfb2da7f1962a9265eb7ff8417da34ad116b0164ac7e6a133247637", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6599b796fbfb2da7f1962a9265eb7ff8417da34ad116b0164ac7e6a133247637", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6599b796fbfb2da7f1962a9265eb7ff8417da34ad116b0164ac7e6a133247637", kill_on_drop: false }`
[INFO] [stdout] 6599b796fbfb2da7f1962a9265eb7ff8417da34ad116b0164ac7e6a133247637
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7579ccd090bd98e514072f4b30b56c9aa83eb867ad3f5a6d3a11eeffa0156e6b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7579ccd090bd98e514072f4b30b56c9aa83eb867ad3f5a6d3a11eeffa0156e6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling symbolic_expressions v5.0.3
[INFO] [stderr]    Compiling reduce v0.1.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling egg v0.6.0
[INFO] [stderr]    Compiling pretty-printer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> src/main.rs:73:30
[INFO] [stdout]    |
[INFO] [stdout] 73 |         ds_costs.into_iter().reduce(|acc_cost, d_cost| {
[INFO] [stdout]    |                              ^^^^^^ multiple `reduce` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `Reduce` for the type `I`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 73 ~         Iterator::reduce(ds_costs.into_iter(), |acc_cost, d_cost| {
[INFO] [stdout] 74 +           match (acc_cost, d_cost) {
[INFO] [stdout] 75 +             (LayoutCost::Infinity, _) => LayoutCost::Infinity,
[INFO] [stdout] 76 +             (_, LayoutCost::Infinity) => LayoutCost::Infinity,
[INFO] [stdout] 77 +             (LayoutCost::BoxDims(acc_bd), LayoutCost::BoxDims(d_bd)) => {
[INFO] [stdout] 78 +               let mut layout: Vec<String> = vec![];
[INFO] [stdout]  ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 73 ~         Reduce::reduce(ds_costs.into_iter(), |acc_cost, d_cost| {
[INFO] [stdout] 74 +           match (acc_cost, d_cost) {
[INFO] [stdout] 75 +             (LayoutCost::Infinity, _) => LayoutCost::Infinity,
[INFO] [stdout] 76 +             (_, LayoutCost::Infinity) => LayoutCost::Infinity,
[INFO] [stdout] 77 +             (LayoutCost::BoxDims(acc_bd), LayoutCost::BoxDims(d_bd)) => {
[INFO] [stdout] 78 +               let mut layout: Vec<String> = vec![];
[INFO] [stdout]  ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/main.rs:168:10
[INFO] [stdout]     |
[INFO] [stdout] 168 |         .reduce(|acc, d| DocAST::HCat(vec![DocAST::Flush(Box::new(acc)), d]))
[INFO] [stdout]     |          ^^^^^^ multiple `reduce` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `Reduce` for the type `I`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 166 ~       Iterator::reduce(ds.into_iter()
[INFO] [stdout] 167 +         .map(lower_doc_ast), |acc, d| DocAST::HCat(vec![DocAST::Flush(Box::new(acc)), d]))
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 166 ~       Reduce::reduce(ds.into_iter()
[INFO] [stdout] 167 +         .map(lower_doc_ast), |acc, d| DocAST::HCat(vec![DocAST::Flush(Box::new(acc)), d]))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `reduce::Reduce`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use reduce::Reduce;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pretty-printer` due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7579ccd090bd98e514072f4b30b56c9aa83eb867ad3f5a6d3a11eeffa0156e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7579ccd090bd98e514072f4b30b56c9aa83eb867ad3f5a6d3a11eeffa0156e6b", kill_on_drop: false }`
[INFO] [stdout] 7579ccd090bd98e514072f4b30b56c9aa83eb867ad3f5a6d3a11eeffa0156e6b